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indented >> http://www.example.com/index.php?A=B
indented >> description here
They are the exact same page and I've never had such paramaters as
?A=B I do have other parameters but not these, and because it's a dynamic page of course it will show content. Could my competition have submited the 2nd url to google in the hope that I would get penalized for duplicate content?
Should my code now be checking for expected parameters because of this? That will be headache, you have to make a list of valid parameters for every dynamic page.
[edited by: tedster at 12:50 am (utc) on June 3, 2008]
[edit reason] switch to example.com - it cannot be owned [/edit]
A guide to fixing duplicate content & URL issues on Apache [webmasterworld.com]
Beyond that, yes -- query string parameters can be a souorce of problems on all search engines. I'm surprised that your page wasn't filtered out as a duplicate, but strange things do happen. It still may disappear.
Whether this was intentional ranking sabotage and done by whom may be hard to discover. But it doesn't matter a lot once you've plugged the hole -- except, of course, to watch out for other nonsense.